/// <summary>
 /// Remove a <see cref="IActorMonitoringClient"/> implementation from the active set
 /// </summary>
 /// <returns>true if the client was successfully removed, false otherwise</returns>
 public bool RemoveMonitor(AbstractActorMonitoringClient client)
 {
     return _activeClients.TryRemove(client);
 }
 /// <summary>
 /// Add a new <see cref="IActorMonitoringClient"/> monitoring implementation to be used
 /// when reporting Actor metrics
 /// </summary>
 /// <returns>true if the client was successfully added, false otherwise</returns>
 public bool AddMonitor(AbstractActorMonitoringClient client)
 {
     return _activeClients.TryAdd(client);
 }